—I hear Jack will leave our school, right?
—That's really________. However, it' s true.
A.unexpected B.wonderful C.unuseful D.uncrowded
By the end of last month, I _____ all the CDs of Justin Bieber.
A.collect B.collected C.have collected D.had collected
—What happened, Mike?
—________I got to school, the first class had been over.
A.In time B.On time C.By the time D.At that time
—I'm sorry I ________my book at home this morning.
—It doesn't matter. Don't forget ________it here this afternoon.
A.left；to take B.forgot；bringing C.left；to bring D.forgot；taking
The meeting ________ by the time I got there yesterday.
A.was on B.has been on C.had begun D.has begun on
— High-speed trains, Mobile payment, Sharing bikes and Online shopping are called "four new great inventions" of modern China.
— They our daily lives more convenient.
A. have made B. had made C. have been made D. made
